Earnings per share (Tables)

12 Months Ended

Dec. 31, 2021

Earnings Per Share [Abstract]

Computation for basic and diluted earnings per share

The computations for basic and diluted EPS were as follows (in millions, except per-share data):

	Years ended December 31,
	2021		2020		2019
Income (Numerator):
Net income for basic and diluted EPS	$	5,893	$	7,264	$	7,842
Shares (Denominator):
Weighted-average shares for basic EPS	570		586		605
Effect of dilutive securities	3		4		4
Weighted-average shares for diluted EPS	573		590		609
Basic EPS	$	10.34	$	12.40	$	12.96
Diluted EPS	$	10.28	$	12.31	$	12.88